From e3449aa1aa388cfa45d92210c06b74fc7b7397e7 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Thu, 23 Aug 2012 13:03:39 +0400
Subject: [PATCH] add experimental self-updating script
---
include/functions.php | 14 ++++
update.php | 171 +++++++++++++++++++++++++++++++++++++++++-
2 files changed, 184 insertions(+), 1 deletion(-)
diff --git a/include/functions.php b/include/functions.php
index 957146f1f..69b481ac4 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -5506,4 +5506,18 @@
return null;
}
+
+ function tmpdirname($path, $prefix) {
+ // Use PHP's tmpfile function to create a temporary
+ // directory name. Delete the file and keep the name.
+ $tempname = tempnam($path,$prefix);
+ if (!$tempname)
+ return false;
+
+ if (!unlink($tempname))
+ return false;
+
+ return $tempname;
+ }
+
?>
diff --git a/update.php b/update.php
index 292b5c1be..f23244d84 100755
--- a/update.php
+++ b/update.php
@@ -28,6 +28,7 @@
print " -cleanup-tags - perform tags table maintenance\n";
print " -get-feeds - receive popular feeds from linked instances\n";
print " -import USER FILE - import articles from XML\n";
+ print " -update-self - update tt-rss installation to latest version\n";
print " -quiet - don't show messages\n";
print " -indexes - recreate missing schema indexes\n";
print " -help - show this help\n";
@@ -205,11 +206,179 @@
_debug("all done.");
}
+ if (in_array("-update-self", $op)) {
+ _debug("Warning: self-updating is experimental. Use at your own risk.");
+ _debug("Please backup your tt-rss directory before continuing. Your database will not be modified.");
+ _debug("Type 'yes' to continue.");
+
+ if (read_stdin() != 'yes')
+ exit;
+
+ $work_dir = dirname(__FILE__);
+ $parent_dir = dirname($work_dir);
+
+ if (!is_writable($work_dir) && !is_writable("$parent_dir")) {
+ _debug("Both current and parent directories should be writable as current user.");
+ exit;
+ }
+
+ if (!is_writable(sys_get_temp_dir())) {
+ _debug("System temporary directory should be writable as current user.");
+ exit;
+ }
+
+ _debug("Checking for tar...");
+
+ $system_rc = 0;
+ system("tar --version >/dev/null", $system_rc);
+
+ if ($system_rc != 0) {
+ _debug("Could not run tar executable (RC=$system_rc).");
+ exit;
+ }
+
+ _debug("Checking for latest version...");
+
+ $version_info = json_decode(fetch_file_contents("http://tt-rss.org/version.php"),
+ true);
+
+ if (!is_array($version_info)) {
+ _debug("Unable to fetch version information.");
+ exit;
+ }
+
+ $target_version = $version_info["version"];
+ $target_dir = "$parent_dir/tt-rss-$target_version";
+
+ _debug("Target version: $target_version");
+
+ if (version_compare(VERSION, $target_version) != -1 && !in_array("-force", $op)) {
+ _debug("You are on latest version. Update not needed.");
+ exit;
+ }
+ if (file_exists($target_dir)) {
+ _debug("Target directory $target_dir already exists.");
+ exit;
+ }
+
+ _debug("Downloading checksums...");
+ $md5sum_data = fetch_file_contents("http://tt-rss.org/download/md5sum.txt");
+
+ if (!$md5sum_data) {
+ _debug("Could not download checksums.");
+ exit;
+ }
+
+ $md5sum_data = explode("\n", $md5sum_data);
+
+ $tarball_url = "http://tt-rss.org/download/tt-rss-$target_version.tar.gz";
+ $data = fetch_file_contents($tarball_url);
+
+ if (!$data) {
+ _debug("Could not download distribution tarball ($tarball_url).");
+ exit;
+ }
+
+ _debug("Verifying tarball checksum...");
+
+ $target_md5sum = false;
+
+ foreach ($md5sum_data as $line) {
+ $pair = explode(" ", $line);
+
+ if ($pair[1] == "tt-rss-$target_version.tar.gz") {
+ $target_md5sum = $pair[0];
+ break;
+ }
+ }
+
+ if (!$target_md5sum) {
+ _debug("Unable to locate checksum for target version.");
+ exit;
+ }
+
+ $test_md5sum = md5($data);
+
+ if ($test_md5sum != $target_md5sum) {
+ _debug("Downloaded checksum doesn't match (got $test_md5sum, expected $target_md5sum).");
+ exit;
+ }
+
+ $tmp_file = tempnam(sys_get_temp_dir(), 'tt-rss');
+ _debug("Saving download to $tmp_file");
+
+ if (!file_put_contents($tmp_file, $data)) {
+ _debug("Unable to save download.");
+ exit;
+ }
+
+ if (!chdir($parent_dir)) {
+ _debug("Unable to change into parent directory.");
+ exit;
+ }
+
+ $old_dir = tmpdirname($parent_dir, "tt-rss-old");
+
+ _debug("Renaming current directory to ".basename($old_dir));
+ if (!rename($work_dir, $old_dir)) {
+ _debug("Unable to rename current directory.");
+ exit;
+ }
+
+ _debug("Extracting tarball...");
+ system("tar zxf $tmp_file", $system_rc);
+
+ if ($system_rc != 0) {
+ _debug("Error while extracting tarball (RC=$system_rc).");
+ exit;
+ }
+
+ _debug("Renaming target directory...");
+ if (!rename($target_dir, $work_dir)) {
+ _debug("Unable to rename target directory.");
+ exit;
+ }
+
+ chdir($work_dir);
+
+ _debug("Copying config.php...");
+ if (!copy("$old_dir/config.php", "$work_dir/config.php")) {
+ _debug("Unable to copy config.php to $work_dir.");
+ exit;
+ }
+
+ _debug("Cleaning up...");
+ unlink($tmp_file);
+
+ _debug("Fixing permissions...");
+
+ $directories = array(
+ CACHE_DIR,
+ CACHE_DIR . "/htmlpurifier",
+ CACHE_DIR . "/export",
+ CACHE_DIR . "/images",
+ CACHE_DIR . "/magpie",
+ CACHE_DIR . "/simplepie",
+ ICONS_DIR,
+ LOCK_DIRECTORY);
+
+ foreach ($directories as $dir) {
+ _debug("-> $dir");
+ chmod($dir, 0777);
+ }
+
+ _debug("Upgrade completed.");
+ _debug("Your old tt-rss directory is saved at $old_dir. ".
+ "Please migrate locally modified files (if any) and remove it.");
+ _debug("You might need to re-enter current directory in shell to see new files.");
+ }
+
db_close($link);
if ($lock_handle != false) {
fclose($lock_handle);
}
- unlink(LOCK_DIRECTORY . "/$lock_filename");
+ if (file_exists(LOCK_DIRECTORY . "/$lock_filename"))
+ unlink(LOCK_DIRECTORY . "/$lock_filename");
?>
--
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